Commercial Dishwasher

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Malywr

Senior Member
Location
New Jersey USA
Do commercial dish Washer needs GFCI protection
DW name plate DH6000
208-250V. 3PH. 46-41A

Code seis all equipment single ph or 3 ph 150 v or less and 60A or less has to gfci protected
This DW is over 150v


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You sort of answered your own question- is over 150 volts so no.

Edit: OOPs, you said 208-250 volts, so if it is connected to 208/120 system then the voltage to ground is less than 150.

If it is connected to corner ground or high leg delta then you have at least one line that is over 150 to ground and the answer would be it is not required on those systems.
 
kwired said:
You sort of answered your own question- is over 150 volts so no.

Edit: OOPs, you said 208-250 volts, so if it is connected to 208/120 system then the voltage to ground is less than 150.

If it is connected to corner ground or high leg delta then you have at least one line that is over 150 to ground and the answer would be it is not required on those systems.
Click to expand...

Power to equipment is 3ph. 245v 60A breaker

Yes phase to ground is 120-125v


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Malywr said:
Power to equipment is 3ph. 245v 60A breaker

Yes phase to ground is 120-125v


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Click to expand...
Sounds like you have a High leg delta with one leg at 208V to ground, the other two legs would be 120V to ground.

Re read post #2, not required on a high leg delta system. Measure all three legs to ground to be sure.
 
infinity said:
So what type of a system this? Is it 3 phase, 4 wire Delta? Or is it 208Y/120?
Click to expand...

be1ceece75783af7015aa90ba86c15b1.jpg

3ph. 208-240v 3 wire no neutral


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jim dungar said:
Do you mean to say they do not make 60A 3pole GFCI breakers?
Click to expand...
Only up to 50A in a 3P 5mA QO model
Does Schneider Electric/Square D offer QO/QOB 3 pole breakers with GFI protection?
Product Line:
Circuit Breakers

Environment:
Applies to QO-GFI

Resolution:
Yes, we offer QO/QOB- GFI 3 pole breakers in amperages of 15, 20, 30, 40, and 50.
NOTE that this breaker does NOT have provision for a load neutral conductor and is for use on 208Y/120 VAC systems.
For 240VAC use EPD/EPE breakers. (30ma ground fault protection)
Click to expand...

But we still don't know if it's a 208Y or 240 Delta.

My guess it is a delta with a center tap neutral and a high leg and therefore don't need one to meet the rule.
 
Malywr said:
Power in building is 245V PH to PH
125V PH to Neutral or GEC
Click to expand...
You have a high-leg 240/120V 3 phase 4 wire center tapped delta system. Per the NEC and ANSI standards it is described by its nominal voltages, not its measured ones.
Two legs to neutral/ground measure the common 120V while the third leg measures 1.73X120V to ground.

Different regions often have slang names for these systems.
 
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